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TIL: Thomas Jefferson introduced macaroni and cheese to the US

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neBYb TIL there is a group of single-celled organisms called Asgard archaea, Lokiarchaeum, named after the Arctic Ocean geothermal vent, Loki's Castle, where they were discovered. They are considered to be the missing link in the evolution of the cell, which separates eukaryotes like humans from bacteria.
4kL7o TIL that a kangaroo rat can survive without ever drinking water. It extracts water from it's diet of seeds.
NQ76 TIL Nearly 37% of purchased Steam games are never played.
658X TIL: If Your Commute To Work Is More Than 45 Minutes, You’re 40% More Likely To Get Divorced
WGEL TIL that, while mating, hermaphroditic (having both male and female sexual organs) species of flatworms engage in penis fencing, battling violently to decide which of the two will be the father. The winner stabs his penis into the loser to inseminate it.